CVE-2021-3546

    Dashboard / Vulnerabilities / CVE-2021-3546

    CVE-2021-3546

    Published: 2 Jun 2021Last Modified: 20 Oct 2026

    Summary:

    Details: An out-of-bounds write vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. The flaw occurs while processing the 'VIRTIO_GPU_CMD_GET_CAPSET' command from the guest. It could allow a privileged guest user to crash the QEMU process on the host, resulting in a denial of service condition, or potential code execution with the privileges of the QEMU process.

    References: http://www.openwall.com/lists/oss-security/2021/05/31/1, https://security.gentoo.org/glsa/202208-27, https://security.netapp.com/advisory/ntap-20210720-0008/, https://www.debian.org/security/2021/dsa-4980, https://bugzilla.redhat.com/show_bug.cgi?id=1958978

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    v6.0.0
    v6.0.0-rc5
    v6.0.0-rc4
    v6.0.0-rc3
    v6.0.0-rc2
    v6.0.0-rc1
    v6.0.0-rc0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-3546 | CVE-DB